1 files changed, 2 insertions, 1 deletions
diff --git a/core/src/test/java/org/apache/spark/util/collection/unsafe/sort/UnsafeInMemorySorterSuite.java b/core/src/test/java/org/apache/spark/util/collection/unsafe/sort/UnsafeInMemorySorterSuite.java
index ff41768df1..90849ab0bd 100644
--- a/core/src/test/java/org/apache/spark/util/collection/unsafe/sort/UnsafeInMemorySorterSuite.java
+++ b/core/src/test/java/org/apache/spark/util/collection/unsafe/sort/UnsafeInMemorySorterSuite.java
@@ -17,6 +17,7 @@
 
 package org.apache.spark.util.collection.unsafe.sort;
 
+import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
 
 import org.junit.Assert;
@@ -41,7 +42,7 @@ public class UnsafeInMemorySorterSuite {
   private static String getStringFromDataPage(Object baseObject, long baseOffset, int length) {
     final byte[] strBytes = new byte[length];
     Platform.copyMemory(baseObject, baseOffset, strBytes, Platform.BYTE_ARRAY_OFFSET, length);
-    return new String(strBytes);
+    return new String(strBytes, StandardCharsets.UTF_8);
   }
 
   @Test